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/*
 * SmartGWT (GWT for SmartClient)
 * Copyright 2008 and beyond, Isomorphic Software, Inc.
 *
 * SmartGWT is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License version 3
 * as published by the Free Software Foundation.  SmartGWT is also
 * available under typical commercial license terms - see
 * http://smartclient.com/license
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 */

import com.smartgwt.client.widgets.Canvas;
import com.smartgwt.client.widgets.form.DynamicForm;
import com.smartgwt.client.widgets.form.fields.PickTreeItem;
import com.smartgwt.client.widgets.tree.Tree;
import com.smartgwt.client.widgets.tree.TreeNode;
import com.smartgwt.sample.showcase.client.data.SupplyCategoryXmlDS;

public class PickTreeFieldSample implements EntryPoint {

    private static final TreeNode departmentRoot =
            new DepertmentTreeNode("root",
                    new DepertmentTreeNode("Marketing",
                            new DepertmentTreeNode("Advertising"),
                            new DepertmentTreeNode("Community Relations")),
                    new DepertmentTreeNode("Sales",
                            new DepertmentTreeNode("Channel Sales"),
                            new DepertmentTreeNode("Direct Sales")),
                    new DepertmentTreeNode("Manufacturing",
                            new DepertmentTreeNode("Design"),
                            new DepertmentTreeNode("Development"),
                            new DepertmentTreeNode("QA")),
                    new DepertmentTreeNode("Services",
                            new DepertmentTreeNode("Support"),
                            new DepertmentTreeNode("Consulting")));

    public void onModuleLoad() {

        final DynamicForm form = new DynamicForm();
        form.setWidth(300);

        Tree tree = new Tree();
        tree.setRoot(departmentRoot);

        PickTreeItem departmentItem = new PickTreeItem();
        departmentItem.setTitle("Department");
        departmentItem.setValueField("name");
        departmentItem.setValueTree(tree);

        SupplyCategoryXmlDS dataSource = SupplyCategoryXmlDS.getInstance();

        PickTreeItem categoryItem = new PickTreeItem();
        categoryItem.setTitle("Category");

        categoryItem.setDataSource(dataSource);
        categoryItem.setEmptyMenuMessage("No Sub Categories");
        categoryItem.setCanSelectParentItems(true);        
        //categoryItem.setLoadDataOnDemand(false);
        //dataSource.fetchData();
        
        form.setItems(departmentItem, categoryItem);
        
        form.draw();
    }

    public static class DepertmentTreeNode extends TreeNode {

        public DepertmentTreeNode(String name) {
            setName(name);
        }

        public DepertmentTreeNode(String name, DepertmentTreeNode... children) {
            setName(name);
            setChildren(children);
        }
    }
}
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